Donald Trump: 'I'll raise my $5 million Obama charity offer' - video

Donald Trump has revealed that he is prepared to offer US president Barack Obama even more money to reveal his education and passport records.

The Celebrity Apprentice host sent a public message to the US president earlier this week, stating that he would donate $5 million (£3.1 million) to a charity of Obama's choice if the politician brought forth his passport documents and college transcripts.